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Question: A group of students decides to sell pizzas to help raise money for their senior class trip. They sold pepperoni for USD 12, sausage for USD 10, and cheese for USD 8. At the end of their sales the class sold a total of 600 pizzas and made $5900. The students sold 175 more cheese pizzas than sausage pizzas. Set up a system of three equations and three unknowns; use an augmented matrix to solve.

[A] Write a separate equation representing each of the first three sentences.
[B] Find the three unknowns?
[D] Determine the augmented matrix that represents the three equations.

 

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